Sentences with phrase «sigmoid fit»

Hence the extrapolated fit to 2015, sigmoid fit to 2025, or other curves seem to be the outliers.

(It would be at the top & slightly left of the «1» in «Ensemble Member Sigmoid Fit 1979 - 2011.»)

Similarly the exponential and sigmoid fits are even more ad - hoc, being physically unrealistic and failing to fit the full time series.

Not exact matches

So extrapolations by fitting a function that resembles a sigmoid - shaped trajectory may make more sense, but even that, as shown in the figure, yields a much earlier prediction of an ice - free Arctic than can be expected from the CCSM4 ensemble.

Conversely, if I reject their contention, the best data we have extrapolates to 1k in 3 (exponential), 8 (sigmoid), or 29 (linear) years, with the best fits for the exponential and sigmoid extrapolations.

An alternative approach could be to take the shape of the CCSM4 ensemble curve, which is kind - of - sigmoid, and then scale that to fit the real data.